Curtain rod



FIG. 1 is a front elevational view of our new design for a curtain rod;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational thereof;

FIG. 4 is a right side elevational thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a bottom view thereof. 

The ornamental design for a curtain rod, as shown and described. 